Well, much to Sora's embarrassment, he hadn't really meant that they should do it tonight. He had more just been affirming that they should do it. Then Riku implied that it should be right now so...so Sora thought that was alright.
The Prince was allowing himself to be properly lost in his violin, call it a habit perhaps, but he was alerted by the sound of Riku climbing onto the bed. His music withered a little as he turned slightly to gaze over his beloved there on his bed, and died out accidentally as he paused just to look.
Realizing he was staring, Sora flushed a little and smiled, lifting his bow to begin again. How many different ways could his violin sing Riku's praises? How the Prince loved his hair, his smile, the way Riku's hand felt against Sora's cheek, every part of his body as well as his voice, his compassionate and gentle heart. He tried to find all the notes that might tell Riku he loved him.